4244587021 has 16 divisors (see below), whose sum is σ = 4343673600. Its totient is φ = 4146892288.

The previous prime is 4244587007. The next prime is 4244587057. The reversal of 4244587021 is 1207854424.

It is a cyclic number.

It is not a de Polignac number, because 4244587021 - 2⁷ = 4244586893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244587091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5903100 + ... + 5903818.

It is an arithmetic number, because the mean of its divisors is an integer number (271479600).

Almost surely, 2^4244587021 is an apocalyptic number.

It is an amenable number.

4244587021 is a deficient number, since it is larger than the sum of its proper divisors (99086579).

4244587021 is a wasteful number, since it uses less digits than its factorization.

4244587021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508.

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 4244587021 is about 65150.4951707967. The cubic root of 4244587021 is about 1619.1179241383.

The spelling of 4244587021 in words is "four billion, two hundred forty-four million, five hundred eighty-seven thousand, twenty-one".